#ifdef CARTRIDGE_CPP uint8 Cartridge::HuC3::mmio_read(uint16 addr) { if((addr & 0xc000) == 0x0000) { //$0000-3fff return cartridge.rom_read(addr); } if((addr & 0xc000) == 0x4000) { //$4000-7fff return cartridge.rom_read((rom_select << 14) | (addr & 0x3fff)); } if((addr & 0xe000) == 0xa000) { //$a000-bfff if(ram_enable) return cartridge.ram_read((ram_select << 13) | (addr & 0x1fff)); return 0x00; } return 0x00; } void Cartridge::HuC3::mmio_write(uint16 addr, uint8 data) { if((addr & 0xe000) == 0x0000) { //$0000-1fff ram_enable = (data & 0x0f) == 0x0a; return; } if((addr & 0xe000) == 0x2000) { //$2000-3fff rom_select = data; return; } if((addr & 0xe000) == 0x4000) { //$4000-5fff ram_select = data; return; } if((addr & 0xe000) == 0x6000) { //$6000-7fff //unknown purpose return; } if((addr & 0xe000) == 0xa000) { //$a000-bfff if(ram_enable) cartridge.ram_write((ram_select << 13) | (addr & 0x1fff), data); return; } } void Cartridge::HuC3::power() { ram_enable = false; rom_select = 0x01; ram_select = 0x00; } #endif